baber/WOPTO huggingface dataset:
Patent GB-2243713-A (GB)
Title: Injection laser modulation
Inventor: MAYO RICHARD HAMMOND
IPC: H01S5/0683
Filed: 1990-05-03
Abstract: A method of amplitude modulating the light output of an injection laser D1 with a binary digital bit stream employs a monitor photodiode D2 for regulation of the bias and modulation current drives. Regulation of the modulation current drive is achieved by subtracting from the photocurrent during data 1 bit periods the desired photocurrent increment associated with data 1's, the resulting signal being multiplied with a signal representative of the integral of the applied bit stream, thereby producing a control signal employed in a feedback control loop A3. The difference signal is additionally used in a separate feedback control loop A1/A2 to regulate the bias current. <IMAGE>
Patent GB-2233767-A (GB)
Title: Integrated bearing with pulser and rotation sensor
Inventor: CARON FABRICE
IPC: F16C19/52
Filed: 1990-06-27
Abstract: Integrated bearing intended particularly for equipping a motor-vehicle wheel hub, comprising a rotary outer ring (1) and a stationary inner ring (2); at least one row of rolling elements (3) arranged between the outer and inner rings; an annular pulser (4) fixed to the rotary ring (1) in the vicinity of one of its ends; and a sensor (5) stationary relative to the stationary ring (2) and located opposite the pulser so as to be capable of measuring the rotational speed of the outer ring in relation to the inner ring of the bearing, characterized in that it comprises a substantially annular flange (6) delimited by an inner cylindrical rim (6a) fixed to the inner ring (2) and by an outer cylindrical rim (6b) which is coaxial relative to the inner rim and on the outside of which is mounted a sensor carrier (7) equipped with means (16) for fastening a connecting cable (8) connected to the sensor, the flange covering without contact the end of the outer ring (1) where the pulser is fastened and being equipped with an orifice (6c), through which the sensor is mounted opposite the pulser.
Patent GB-2247241-A (GB)
Title: Stabilising composition for filled polymeric materials
Inventor: STOLL KLAUS
IPC: C08K5/41
Filed: 1990-08-22
Abstract: A composition suitable as a processing stabiliser for a polymeric substrate comprises:     (a) one or more phosphonites of formula I   <IMAGE>     (b) one or more compounds of formula II   (II) S(-[OCH2)p-CO-O-R10]2   in which p is an integer of 2-6; n is 0 or 1; m is 0 or 1; Y is 0, -S-, -CH(R5), or -C6H4-; where R5 is hydrogen, C1-8alkyl or @ COOR6; where R6 is C1-8 alkyl; @each R, independently, is a group derived from an aliphatic, alicyclic or aromatic alcohol containing one or two OH groups; whereby the two -OH groups are not positioned to be able to form a P-containing ring; or both groups R form a group derived from an aliphatic, alicyclic or aromatic alcohol containing two OH groups in such a position tat they can form a cyclic group with a single phosphorus atom      R10 is C10-32 alkyl or C10-32 alkenyl. Component (a) may comprise a mono- and di-phosphonite of formula (I) and a phosphite of formula (RO)3-P, wherein R is as defined above. The composition may additionally comprise a phenol of formula R7OH or R8(OH)2, wherein R7 and R8 are as defined for R.
Patent GB-2247577-A (GB)
Title: Power supply arrangement
Inventor: BIGWOOD JONATHAN
IPC: G06F1/28
Filed: 1990-08-31
Abstract: A load such as a microprocessor (22) is fed by a voltage regulator (42) which has an output enable terminal (HLD) and a low-output warning terminal (ERR) in addition to an input (BAT), an output (REG) and ground (GND) terminals. The output enable terminal (HLD) can be held in its active state by an external user pressing a push button (34), by a discharged capacitor (36), or by two FETs (38, 40) which are connected in series both conducting. These FETs behave as a NAND gate and operate to cause the output enable terminal (HLD) of the regulator to be in an inactive state in response to operation of a push button (20) and thus the off-request signal (DIS) being in an active state thereby causing the output (REG) voltage of the regulator to decrease causing the low-output warning terminal (ERR) to assume its active (error) state. Once the off-request terminal (DIS) has been activated no further control of the power supply is available to the microprocessor. This has the advantage that the microprocessor can initiate its own power off without fear that any erratic behaviour of its output lines as the regulator output (REG) falls will cause the reconnection of the power supply. <IMAGE>
Patent GB-2238645-A (GB)
Title: Instrument pitch changer
Inventor: OFFORD NIGEL RAYMOND
IPC: G10D3/14
Filed: 1990-11-01
Abstract: A rear-mounting and self-positioning detachable, or permanently fixed, pitch changer for any musical instrument which has strings fed through the body. Any permutation of the fitted strings may be anchored to the base section 10 or lever section 12. The leverage is body-operable and the lever section 12 is counter sprung or otherwise resistant at the hinge or fulcrum connecting section 14. Together with inherent string tension this is sufficient to gain sensitivity of movement and return the assembly to its at rest position. Different modes of wide and limited pitch variation may be produced as well as convertibility one to the other to obtain differing musical effects. A range of materials and shapes is suitable for its construction. Secured by string tension, it may be further reasonably secured without detriment to its operation. Recessing or building into or onto a host instrument may render inessential certain parts hitherto specified. <IMAGE>
Patent GB-2235743-A (GB)
Title: A field joint insulation for insulated pipelines
Inventor: ARNOTT THOMAS CHRISTOPHER
IPC: F16L59/20
Filed: 1990-11-13
Abstract: The field joint (10) comprises two bare metal end portions of insulated pipes (11, 12) welded together. The field joint insulation (20/40) covers the bare metal in a time of 10 to 15 minutes. It comprises a preformed insulated infil which locates around the bare metal and an anti-corrosion coating between the infil and the metal pipe. In one embodiment the infil (41) is preformed on a mandrel and split longitudinally. In another embodiment, the infil (21) is of PVC foam (15), striated on one side (grooves 30 and bars 31) so that it can wrap round the metal field joint and covered on its other (outer) side by a protective coating (16) which is waterproof and abrasion resistant.
Patent GB-2299395-A (GB)
Title: Proximity fuze
Inventor: SEPP GUNTHER
IPC: G01S17/46
Filed: 1990-11-14
Abstract: An optical proximity fuse for a projectile provides improved discrimination between target and "masks" and has two laser transmitters (L1,L2) with beams (4,5) aligned along different paths with a common optical receiver (D). The transmitter beams (4,5) intersect the receiver field of view (3) at different distances (1,2) from the projectile and at different lateral distances from the longitudinal axis of the projectile, the intersection area (1) nearer the projectile corresponding to the target detection point. A detonation signal is only generated when both transmitter identifications appear in the receiver over a preselected time interval and with reception intensities included within certain preselected ranges. The moment of the detonation signal is derived in a preselected manner from the time sequence and the separation in time of the two signal identifications received.
Patent GB-2243348-A (GB)
Title: Suspension system for an automotive vehicle wheel
Inventor: SATO MASAHARU
IPC: B60G3/20
Filed: 1991-03-26
Abstract: A double-wishbone type suspension system includes a hub carrier 2 for supporting an automobile wheel, upper and lower link devices 3, 6 for rotatably connecting upper and lower ends of the hub carrier 2 to a vehicle body, respectively, and a wind-up link 8 for connecting a middle portion of the hub carrier 2 to the lower link device 6. The wind-up link 8 is arranged obliquely to the fore-and-aft direction and is rotatably connected to the hub carrier 2 at a connecting point I where the hub carrier is permitted to rotate in a direction of toe angle variation. This connecting point I is used as a kingpin axis setting point whose location can be relatively freely determined to satisfy requirements imposed on the suspension system, owing to a relatively high degree of freedom in designing the configuration of the hub carrier. <IMAGE>
Patent GB-2245357-A (GB)
Title: Traffic beacons
Inventor: PARRIS DANNY EGERTON STANISLAU
IPC: E01F9/615
Filed: 1991-06-18
Abstract: A traffic beacon casing (1) is made up of two hemispherical shell portions (2 and 3). The inner surface of each of the shell portions (2 and 3) is formed with an array of light-diffusing elements (20) which serve to diffuse light transmitted from an internal light source housed within the casing (1) to the exterior of the beacon. Because the elements (20) serve to diffuse light it is possible to form the casing (1) from dyed transparent or semi-transparent material rather than from material having a high opacity such as is employed to form conventional traffic beacon casings in which the casing material itself provides the required degree of light diffusion. Accordingly, light transmission can be enhanced as compared to such a conventional traffic beacon, thereby enhancing visibility and contributing to road safety. <IMAGE>
Patent GB-2246261-A (GB)
Title: Tracking arrangements and systems
Inventor: HARRIS CHRISTOPHER GEORGE
IPC: G06V10/147
Filed: 1991-07-05
Abstract: A tracking system for tracking the relative positions of a video camera 8 and a three dimensional object (eg a runway) between which there is unknown but continuous relative motion, the tracking system including a video camera 8 for viewing the object, first means for defining a visual model of the object (eg at a ground station 7), the model consisting of a specification of a set of control points 3 which are located at high contrast edges of the object and whose position 5 in the video image define the position and orientation of the object relative to the camera and second means 11 for comparing the visual model with each frame of the camera's image of the object and for measuring the difference between the two images at each of the control points, the difference measurements for each frame being used to modify an initial or previous estimate of the position and attitude of the object relative to the camera which in turn is used to revise the predicted position of the set of control points on the image for comparison with the next succeeding frame of the video camera whereby the visual model and camera image are gradually brought into conformity. The tracking system may be used as an aircraft landing aid. <IMAGE>
Patent GB-911997-A (GB)
IPC: B01F15/00
Abstract: 911,997. Stuffing-box substitutes. BOLLING & CO. Inc., STEWART. Sept. 19, 1961 [June 28, 1961], No. 33467/61. Class 122 (5). Leakage of pressurized material from a machine chamber 15 along a shaft 11 is controlled by means of a sealing-ring 30 which is coaxial with the shaft and spaced therefrom by a leakage passage 13 leading away from the chamber 15 and through which the flow of leakage material is maintained and controlled in a predetermined manner by heat-exchange medium supplied to the ring 30. The shaft 11 drives a rotor 14 having blades 21 for mixing thermoplastic material in the chamber 15. The ring 30 which may be formed of two segments, is secured to the machine frame 17 by means of screws 40 through the interposition of shim rings 41 which serve to adjust the leakage passage between the ring and a shoulder 24 on the rotor. The heat-exchange medium, which may be steam, hot or cold water or brine, is supplied to, and exhausted from, a chamber 43 in the ring 30 by means of conduits 44, 45 fitted with control valves 50. The leakage material is bled from the portion 13b of the passage 13 through one or more passages 47 provided in the ring 30 and connected to a valve controlled discharge conduit 48. The inner periphery of the ring 30 is provided with helical grooves 51 which on rotation of the shaft causes a portion of the leakage material to flow back towards the chamber 15.
Patent GB-2248289-A (GB)
Title: Tumble dryer and versatile heater/ventilator
Inventor: DURAZZANI PIETRO
IPC: D06F58/20
Filed: 1991-09-24
Abstract: A laundry-drying machine includes at least one drum for holding the wet laundry, at least one element 21 for heating air, at least one fan for the hot air, a duct 3 for taking in air from the room and an expulsion duct 6 for connection to the outside. The hot air may selectively be deflected into the drum, or to a hairdryer, a hand-drying outlet, or a room-heating hot-air outlet. <IMAGE>
Patent GB-2253472-A (GB)
Title: Production of slush hydrogen
Inventor: MIYAZAKI JUN
IPC: C01B3/00
Filed: 1991-11-29
Abstract: A slush hydrogen production apparatus adapted to efficiently produce slush hydrogen having even particle diameters comprises a liquid hydrogen supply/discharge passage (2) connected to the lower portion of an insulated closed container (1), an exhaust passage (4) and a helium gas supply passage (5) connected to the upper portion of the insulated closed container (1), a heat exchanger (7) and a vacuum pump (9) arranged in the exhaust passage (4) and a stirring means (16) disposed within the insulated closed container (i). The stirring means (16) is adapted to be driven from an outside of the insulated closed container (1). In use, liquid hydrogen is supplied into the container at atmospheric pressure. By operating the vacuum pump (9), the pressure is decreased to the triple point pressure of hydrogen. Changeover valve (6) is then closed to increase the pressure, which causes frozen hydrogen to sink to the bottom of the container. The stirring means fragments the solid hydrogen. The process is repeated until visual inspection via window (15) confirms the completed production of the slush. After a set time, valve (5) is opened and helium gas under pressure forces the slush out via passage (2). <IMAGE>
Patent GB-2268628-A (GB)
Title: Affixing dielectric resonator on p.c.b.
Inventor: MILLER SUSAN CHRISTINE
IPC: H01P7/10
Filed: 1992-07-07
Abstract: A method of affixing a passive dielectric component (10) e.g. a dielectric resonator to a printed circuit board (16) comprises the steps of forming a metallised area (14) on the p.c.b. separate from the printed electrical circuitry, forming a like metallised area (12) on the component, applying solder material (18) to one of the metallised areas, placing the component on the metallised area on the board and reflowing the solder to create a metal-solder-metal bond between the component and the p.c.b. A metal or dielectric spacer may be positioned between the component and the p.c.b, which spacer is soldered to the p.c.b. and adhesively attached to the component. <IMAGE>
Patent GB-2262501-A (GB)
Title: A security price or bar code label.
Inventor: ORD EZ GABRIEL
IPC: G09F3/02
Filed: 1992-07-24
Abstract: The label includes a layer 4 of paper or similar substance on which the price of an article to be sold can be directly provided or represented by a bar code and includes a releasable dye preferably in the form of a plurality of microcapsules 3 which under normal circumstances is retained intact but which ruptures if the label is bent, eg. if it is removed from the article to be sold, thereby preventing the label being fraudulently attached to other goods. The capsules 3 are interposed between the layer 4 and a further paper layer 1 coated with adhesive 2. The label may be coated or impregnated with a clear substance which turns a highly visible colour when the label is subjected to laser light by a barcode reader. <IMAGE>
Patent GB-2269298-A (GB)
Title: Optimizing channel selection in cellular telephone networks
Inventor: WONG HENRY K H
IPC: H04W16/18
Filed: 1992-07-28
Abstract: In a cellular telephone network the selection of channels of the same frequency for re-use elsewhere in the network is optimized by a statistical method in which the geographical area covered by the network is subdivided into a large number of small sub-areas of generally equal shape and size. The strength of signals received from transmitters within the network is measured at each accessible sub-area and the source of the strongest signal for the sub-area is defined as the serving cell-site centre and the remaining signals as interferer signals. Carrier to interference (CIR) ratios are thereafter calculated and compared to a predetermined minimum acceptable level of CIR for the network. For each cell site of the network the total number of sub-areas in which signal strengths have been ascertained is aggregated and compared with the number of such sub-areas in which the actual CIR is above the minimum acceptable value, to thereby determine the probability of interference occurring in that cell with one or more signals received from other cell sites within the network if the same channel frequency is re-used. The method therefore provides a means to optimize channel selection by selecting a channel having the lowest probability of interference with signals from other cells using the same channel frequency in the network.
Patent GB-2260136-A (GB)
Title: Method for producing octadienols
Inventor: SATO KEIICHI
IPC: C07C29/36
Filed: 1992-10-01
Abstract: A method for producing octadienols, which comprises reacting 1,3-butadiene with water in the presence of a palladium compound, a phosphine compound and carbon dioxide, wherein a compound of the formula (I):   <IMAGE> wherein each of R<1>, R<5> and R<9> which may be the same or different, is a hydrocarbon group, and each of R<2>, R<3>, R<4>, R<6>, R<7>, R<8>, R<10>, R<11> and R<12> which may be the same or different, is hydrogen or a substituent, provided that at least one of them is an electron donative substituent, is used as the phosphine compound.
Patent GB-928861-A (GB)
IPC: C01G43/025
Abstract: 928,861. Gas burners. UNITED STATES ATOMIC ENERGY COMMISSION. Feb. 7, 1961 [April 8, 1960], No. 4554/61. Class 75 (1). [Also in Group III] A burner for decomposing uranyl nitrate solution (see Group III) is provided with a jacket 313 to which air is fed through a line 317 to pass downward through a Venturi nozzle 333. Propane is fed by a line 319 to a circumferential slot 337 surrounding the air nozzle 333 and the mixture is ignited by a spark-plug 339. Hot combustion gases pass upwardly through a channel 325 around the flame zone 341 to preheat the propane and air mixture. Uranyl nitrate solution to be decomposed is fed through a line 345. An ultraviolet detector 343 opens the uranyl nitrate feed line when the flame is established and closes it when the flame is extinguished.
Patent GB-2267654-A (GB)
Title: Whisk
Inventor: RANDELL JULIA
IPC: B01F7/00
Filed: 1993-03-09
Abstract: A device for manually whisking liquids or semi-liquids consists of a rod 1, to the end of which are individually attached toroidal coils 2, 3, 4 e.g. of stainless steel or plastics fixed to the rod by wire loops 5 twisted to tightness. Annular grooves 8 are formed in the rod to provide longitudinal abutments for the coils 2, 3 and 4 and the end 7 of the rod may protrude beyond the coils and be domed to provided a bearing. The head of the device is immersed in the liquid to be treated and is spun by rolling the rod between the palms of the user's hands to rotate the device at high speed to agitate and froth the liquid. The device can whisk milk, eggs, ice cream, salad dressings, mayonnaise. <IMAGE>
Patent GB-2281103-A (GB)
Title: Fans driven by pneumatic motors
Inventor: LUO A-FA
IPC: F01C13/00
Filed: 1993-08-16
Abstract: A fan is driven by a pneumatic motor 110 having a rotor 10 provided with collars 30, (31 Fig. 2) which cause rotor vanes 22, 23, 24 and 25 move radially in and out of their slots. The pneumatic motor 110 is driven by compressed air from a compressor 150. A control device 160 is mounted by one side of the pneumatic motor 110 for regulating the air current generated by the blades 120 of the pneumatic fan. Located by another side of the pneumatic motor 110 is a silencer (130, Fig. 1) capable of reducing the noise generated by the fan blades 120 and the motor 110 in action. The air exhausted from the pneumatic motor of one fan may be supplied to drive the motor of a second fan (Fig. 6). <IMAGE>
Patent GB-2274497-A (GB)
Title: Screw and nut combination
Inventor: EMMETT JOHN ERIC
IPC: F16B37/02
Filed: 1993-09-17
Abstract: A fastener combination comprises a screw 8 (Figure 2) having an asymmetric screwthread, and a sheet metal nut 13 having a raised portion 12 provided with an aperture having a helical edge for engaging the asymmetric screwthread of the screw 8, to allow the use of higher torque. The volume of the material constituting the thread of the screw is not less than the volume of the space between threads. The asymmetric thread may have the form shown in Figure 7. The sheet metal nut may be U-shaped to clip onto the edge of a pair of plates. <IMAGE>
Patent GB-2282836-A (GB)
Title: Stackable traffic barrier unit
Inventor: KNOWLES PETER GODFREY
IPC: E01F9/70
Filed: 1993-10-12
Abstract: The traffic barrier unit 10 is comprised of a hollow plastics moulding of inverted v-section. The unit may be stacked on similar units with the upper part of a lower unit being received between the opposed limbs 11, 12 of an upper unit. The uppermost unit of the stack may be removed by sliding it longitudinally over the unit beneath. The unit is adapted to be connected in end-to-end relation with like units to form a barrier of extended length. The connection may comprise an extending lug 13 at one end having an upwardly facing socket 14, and a recess 15 at the other end having a depending finger 16 for engagement with the socket. The finger 16 may have an outwardly facing cam surface 17 whereby connection may be effected by pushing two units together. <IMAGE>
Patent GB-2284208-A (GB)
Title: Nucleic acid analogues with a chelating functionality for metal ions
Inventor: STANLEY CHRISTOPHER JOHN
IPC: C12Q1/6813
Filed: 1993-11-25
Abstract: A nucleic acid analogue comprises a polymeric strand including a sequence of ligands bound to a backbone made up of linked backbone moieties and has a moiety capable of binding at least one metal ion by chelation. The analogue is capable of hybridisation to a nucleic acid of complementary sequence. A solution of the analogue may readily be concentrated by capturing the analogue from solution on to a solid support having chelatable metal ions or may readily be labelled by a label comprising a chelatable metal ion as a label or having a label linked to a chelatable metal ion. The backbone may comprise a polyamide, polythioamide, polysulphinamide or polysulphonamide, preferably poly(amino acid) The chelator is preferably an amino acid, oligopeptide (especially (His)5) or polycarboxylic acid (especially EDTA).
Patent GB-2274352-A (GB)
Title: Electronic device packaging assembly
Inventor: MILLS LOUIS THOMAS
IPC: H01L23/057
Filed: 1993-12-10
Abstract: An electronic device package assembly comprising a base member 112; a cover member 114; a lead frame 116 having a plurality of leads 119 disposed between the base member and the cover member; an electronic device 122 disposed between the base member and the cover member and electrically attached to the leads; bonding rings 126, 128 for bonding the base member and the cover member to the lead frame; and spacers 150, 152 disposed between the lead frame and the base member and the lead frame and the cover member for maintaining the base member and the cover member at a predetermined spacing from the lead frame. The spacers may be formed separately or integral with the lead frame. <IMAGE>